Bottle cap



R. W. SAMPSON.

v BOTTLE CAP. APPLICATION FILED MAR. 26, 1921- Patented 0%. 3,1922.

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By his diioz'ize Patented Oct. 3, 1922.

UNITED STATES 1,430,685 PATENT OFFICE.

ROBERT WILLIAM SAMPSON, OF NEW YORK, N. Y.

BOTTLE CAP.

Application filed March 26, 1921. Serial 110,455,798.

To all whom it may comer n.

Be it known that I, ROBERT WILLIAM SAMPSON, a-subject of the King of Great Britain, and resident of the city, county, and State of New York, have invented certain new and useful Improvements in Bottle Caps, of which the following is a specification. r

My invention relates to that class of bottle caps wherein a more or less elastic capping element is used to cover the mouth of a bottle and is secured in place by a substantially rigid holding element; and my improvements are directed particularly to constructing the cap and the holding element in such a way that they can be readily applied to and detached from a bottle, without injury to them or tothe bottle, and without the use of any special tools, the device being particularly applicable for use with bottles which are to be frequently opened antclosed, such as bottles which are used to contain charged or effervescent li uids, or the like, where a simple, positive an efficient closer is particularly desirable.

In the-drawings, Fig.1 is a perspective view of thetop of a bottle capped wlth my improved closer; Fig. 2 is a vertical, sectional view of the closer as applied to the bottle top; Fig. 3 is a vertical, sectional view of the preferred form of the closer cap; Figs. 4, 5, 15 and 16 are similar views of modifications; Figs. 6, 7 8, 9, 10, 13 and 14 are views of modified forms of the clamping rounded bead 2 around its mouth, below hand; Figs. 11 and 12 show, in elevation and plan, respectively a modified combina- .tion of closer and band; and Fig. 17 is a bottom view of Fig. 16.

Similar parts are designated by similar reference numerals in all the figures.

The bottle top 1, is of a common, conventional form, being provided with a which head is a roove 3.

A more or less elastic cap 4, is moulded out of a suitable substance, as rubber, and has, preferably, a flattened to 5, an annulari periphery 6 which, pre erably, flares slightly downward and outwardl and has a hollow interior in the wall of which is formed 'a bead 7, the central opening through which is slightly less in diameter than the groove 3 in the neck of .the bottle.

The cap is so proportioned that, whenit is slipped over the top of the bottle, the inside of its top will fit'down snugly over the bottle top while the head 7 will hu the groove 3, and the skirt 8 will sprearI down evenly over the bottle neck below the groove.

This cap is preferably formed with a relnforced central portion, to prevent it from bulging or stretching under pressure from within the bottle. In Figs. 2 and 3 I have shown this as being accomplished by providlng the cap with a convexed or thickened central portion 9. And in Fig. i I have shown the cap as formed with'a flat top below which is inserted a disc 10 of some comparatlvely stiff material, such as hard fibre or the like, which has sufiicien-t strength to withstand the ordinary pressures apt to be generated within closed bottles.

In Fi 5 I have shown the top of the cap as of'su stantially uniform thickness and as not reinforced. Figures 15-, 16 and 17 show modifications wherein the cap is made of waxed paper or the like, the lower edge being folded or rolled in so as to make a holding bead 11 within the ca which bead may be sprung into the bottiia the cap is placed on the bottle. These paper caps may be reinforced, as with a stiffening disc 12 to give additional strength.

The securing element consists essentially of a band or ring which is roportioned to groove 3 when of the cap, around which it may e pushed or wedged down, the tapered form of the cap and band ermitting them to be so adjusted as to ta e up any slack due to ordinary variations in the size of the bottle top,

or com ression, or expansion, or wearing Y away 0 the cap in use.

It is preferable to provide this band with 7 means whereby it may be readily grasped by-the fingers to apply or remove it. Thus, in Figs. 1 and 2 I have shown it as furnished with a'bead15 around its upper edge; in Fig. 'I a head is placed around each edge; in Fig. 9 a top 17 is formed integral with the band; in Fig. 10 the lower edge is spread out as at 18; and in Fig. 1 1 a finger hold 19 is attached to the outside of the band. A plain ring 20, such as is shown in Figs. 6, 11 and 12 may be used; and this ring may be split as shown by 21 in Fig. 13 if a slight amount 12 I have shown the cap 4 as provided with an integral lug 22 through which the ring 20 is passed, so that the ring and cap are normally attached to each other, the ring being tightened by pushing its free side down over the ca These modifications are illustrative of variations in form with which my improvements may be carried out. And it will be understood that other modifications might be made, as by the use of mechanical equivalents, Without departing from spirit of my invention as claimed. I

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is 1. In a bottle closer, the combination of a cap having an interiorly projecting contractable and expansible holding element with exterior expansion resisting means.

2. In a bottle closer, the combination of a cap having an integral and interiorly projecting contractable and expansible holding element with exterior expansion resisting means.

3. In a bottle closer, the combination of a cap having an integral, interior bead constituting a eontractable and expansible holding element with exterior'expansion resisting means.

4. In a bot-tlecloser, the combination of a cap having a closed top, a depending, flaring rim and an interior expansible and contractable holding bead with exteriorly applied anti-expansion means.

5. In a bottle closer, the combination of a cap having a closed top, a depending, flaring rim and an interior expansible and contractable holding'bead with an exteriorly applied, downwardly flaring annular band constituting anti-expansion means.

6. In a bottle closer, the combination of a cap having an interiorly rojecting contractable and expansible ho ding element with an exterior band provided with a finger hold and constituting exterior expansion resisting means.

7. In a bottle closer, the combination of a cap having an interiorly projecting contractable and expansible holding element with an exterior band provided with an annular bead forming a finger hold and constituting exterior expansion resisting means.

8. In a bottle closer, the combination of a cap having an interiorly projecting contractable and expansible holding element with an exterior band provided with an annular bead around its upper edge forming a finger hold and constituting exterior expansion resisting means.

9. In a bottle closer, the combination of acap having an integral, interior head of a less diameter than the portion of the bottle with which it is intended to cooperate and constituting a contractable and expansible holding element with exterior expansion resisting means.

10. In a bottle closer, the combination of a cap having a closed, reinforced top, a depending, flaring rim and an interior expan,

sible and contraotable holding bead with ex; teriorly applied anti-expansion means.

ROBERT WILLIAM SAMPSON. 

